⚡ Interactive API Explorer
Test real-time JSON responses directly in your browser. All endpoints support standard HTTP GET and POST requests.
Request URL:
https://gemsmakers.com/api/v1/calculate.php?action=bullion_melt&weight_g=31.1035&karat=18&spot_per_oz=2700
// JSON response will render here...
⚡ 1-Line Script Widget SDK (widget.js)
Embed ultra-fast, zero-dependency, crawlable interactive calculators on external blogs, portals, and web apps with a single line of HTML.
Select Widget Type:
<div class="gemsmakers-widget" data-type="gold-melt" data-theme="dark"></div> <script async src="https://gemsmakers.com/widget.js"></script>
👁️ Live Widget Preview:
🏷️ Dynamic SVG Vector Badges
Live vector badges (`/badge.php`) for GitHub READMEs, developer docs, and forum signatures. Zero external tracker dependencies.
Gold & Precious Metals
Horology & Timing
Civil & Structural
Astrophysics & Atlas
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HTML5 Physics Games
📦 Integrations & Directory Submissions
Copy-ready metadata for Custom GPT Actions, Postman Network, and GitHub public-apis directory.
GitHub
public-apis/public-apis Entry:
| GemsMakers | Free interactive scientific, engineering, and bullion scrap calculation REST API | `No` | `Yes` | `No` | https://gemsmakers.com/developers.php |
Custom GPT Action Import URL:
https://gemsmakers.com/openapi.json